CN105372240A - Preparation method of rapid formaldehyde detection reagent - Google Patents
Preparation method of rapid formaldehyde detection reagent Download PDFInfo
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- CN105372240A CN105372240A CN201510952045.3A CN201510952045A CN105372240A CN 105372240 A CN105372240 A CN 105372240A CN 201510952045 A CN201510952045 A CN 201510952045A CN 105372240 A CN105372240 A CN 105372240A
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Abstract
The invention discloses a preparation method of a rapid formaldehyde detection reagent. The reagent prepared through the preparation method is prepared from, by weight, 1.5%-3.5% of potassium periodate, 3.6%-4.2% of orthophenanthroline, 2.2%-5.2% of sodium purosulfate, 1.5%-2.5% of petroleum ether, 2.5%-3.5% of citric acid, 0.6%-2.6% of phenol reagent, 1.2%-3.2% of acetylacetone and the balance distilled water. A novel formulation composition is adopted in the prepared rapid formaldehyde detection reagent, on the one hand, the sensitivity of formaldehyde testing is improved, and the response is rapid; on the other hand, interference of acetaldehyde and propionaldehyde in the environment in the test result is reduced, thus, the rapid formaldehyde detection reagent has the advantages of being high in response speed and sensitivity and good in stability, meanwhile, the test result is accurate, and the rapid formaldehyde detection reagent can be used for formaldehyde detection of various environments.
Description
Technical field
The present invention relates to a kind of preparation method of formaldehyde quick detection reagent.
Background technology
At present, along with the fast development of industrial technology, Sudden Pollution Accident constantly increases, and threatens human health, saboteur's ecologic environment, seriously governs the ecologic equilibrium and society, expanding economy.Take precautions against abrupt polluting accident problem demanding prompt solution a lot, top priority sets up monitoring method for emergency technology, once contamination accident occurs, can drop into monitoring rapidly, contamination data is accurately provided, for antipollution diffusion and take counter-measure to provide scientific basis within the shortest time.Therefore, extremely strong for Time and place characteristic, the significant Sudden Pollution Accident of random variation, Site Detection obtain in time and the accurate perfect answer of answer comparatively accurately comes too late than one test in laboratory is valuable many.In-situ check and test method normally detects in real time in workplace, namely records in sample whether there is test substance and concentration thereof at short notice.It is few that method for Site Detection needs sampling quantity, and possess higher accuracy and sensitivity, the feature such as the instrument fast, to use easy and simple to handle is easy to carry.In-situ check and test method comparatively ripe at present has test paper method, detects tube method, miniature LHD units, dirt thing experimental method, portable instrument method etc.
Formaldehyde is a kind of colourless, has the gas of intense stimulus, has volatile characteristic.Formaldehyde is one of major pollutants of indoor environment, is defined as carcinogenic and teratogenesis material by the World Health Organization (WHO).World Health Organization (WHO) the regulation safe concentration be exposed in formaldehyde in 30 minutes is 80ppb, the formaldehyde exposure concentration that Occupational Safety and Health Administration of the U.S. (OSHA) regulation allows is 750ppb, and extreme danger concentration (IDLH) is 20ppm.The formaldehyde sucking high concentration there will be serious stimulation and oedema, eye shouting pain and the headache of respiratory tract.The formaldehyde of Long Term Contact low concentration can cause slow poisoning, causes dizzy weak, neurasthenia, mental depression and chronic respiratory disease etc.The harm of formaldehyde to infant and pregnant woman is more serious, can cause the serious consequence such as fetal anomaly and miscarriage.
Formaldehyde is widely used in the production of bonding agent in constructional ornamental material, in recent years along with the use of artificial board, furniture and various finishing material in interior decoration, finishing terminates rear formaldehyde that is residual and resin decomposition can Environment release towards periphery slowly, formaldehyde content in indoor air is caused to exceed standard, this process is 5 to 10 years, therefore very important to the detection of Formaldehyde in Environment, the injury brought in case Formaldehyde in Environment exceeds standard.
Summary of the invention
The defect that the present invention seeks to exist for prior art provides a kind of preparation method of formaldehyde quick detection reagent.
The present invention for achieving the above object, adopts following technical scheme: a kind of preparation method of formaldehyde quick detection reagent, comprises the steps:
(1) by mass percent be 1.5 ~ 3.5% potassium metaperiodate and mass percent be 3.6 ~ 4.2% Phen join successively and be equipped with in the reactor of distilled water, and stir, the speed stirred is 40 ~ 50 revs/min, mixing time is 5 ~ 7 minutes, whipping temp is 10 ~ 12 DEG C, then obtains acid solution;
(2) by mass percent be 2.2 ~ 5.2% sodium pyrosulfate join in above-mentioned acid solution, after treating to dissolve completely, add mass percent be 1.5 ~ 2.5% sherwood oil, mass percent be the citric acid of 2.5 ~ 3.5%, stir, the speed stirred is 50 ~ 60 revs/min, mixing time is 6 ~ 8 minutes, and whipping temp is 5 ~ 7 DEG C, makes solution be translucent;
(3) finally add successively mass percent be 0.6 ~ 2.6% phenol reagent and mass percent be the diacetone of 1.2 ~ 3.2%, continuous stirring, the speed stirred is 30 ~ 38 revs/min, mixing time is 5 ~ 7 minutes, whipping temp is 15 ~ 18 DEG C, namely obtains formaldehyde quick detection reagent after mixing.
Further, the concentration of described sherwood oil is greater than 92% (percentage by weight), and the concentration of described citric acid is greater than 93% (percentage by weight); The concentration of described phenol reagent is greater than 94% (percentage by weight); The concentration of described diacetone is greater than 95% (percentage by weight).
Beneficial effect of the present invention: formaldehyde quick detection reagent provided by the invention, employing new formulation combines, the sensitivity that improve PARA FORMALDEHYDE PRILLS(91,95) test on the one hand, and be swift in response, be reduction of acetaldehyde in environment, propionic aldehyde to the interference of test result on the other hand, therefore formaldehyde testing reagent provided by the invention has the feature of fast, the highly sensitive and good stability of reaction velocity, and test result is comparatively accurate simultaneously, can be used in various environment formaldehyde examination.
Embodiment
Embodiment 1:
A kind of formaldehyde quick detection reagent of the present invention, comprises the composition of following percentage by weight:
The preparation method of above-mentioned quick detection reagent, comprises the steps:
(1) by mass percent be 1.5% potassium metaperiodate and mass percent be 3.6% Phen join successively and be equipped with in the reactor of distilled water, and stir, the speed stirred is 40 revs/min, mixing time is 5 minutes, whipping temp is 10 DEG C, then obtains acid solution;
(2) by mass percent be 2.2% sodium pyrosulfate join in above-mentioned acid solution, after treating to dissolve completely, add mass percent be 1.5% sherwood oil, mass percent be the citric acid of 2.5%, stir, the speed stirred is 50 revs/min, mixing time is 6 minutes, and whipping temp is 5 DEG C, makes solution be translucent;
(3) finally add successively mass percent be 0.6% phenol reagent and mass percent be the diacetone of 1.2%, continuous stirring, the speed of stirring is 30 revs/min, and mixing time is 5 minutes, whipping temp is 15 DEG C, namely obtains formaldehyde quick detection reagent after mixing.
Embodiment 2:
A kind of formaldehyde quick detection reagent of the present invention, comprises the composition of following percentage by weight:
The preparation method of above-mentioned quick detection reagent, comprises the steps:
(1) by mass percent be 2.5% potassium metaperiodate and mass percent be 3.9% Phen join successively and be equipped with in the reactor of distilled water, and stir, the speed stirred is 45 revs/min, mixing time is 6 minutes, whipping temp is 11 DEG C, then obtains acid solution;
(2) by mass percent be 3.5% sodium pyrosulfate join in above-mentioned acid solution, after treating to dissolve completely, add mass percent be 2.0% sherwood oil, mass percent be the citric acid of 3.0%, stir, the speed stirred is 55 revs/min, mixing time is 7 minutes, and whipping temp is 6 DEG C, makes solution be translucent;
(3) finally add successively mass percent be 1.6% phenol reagent and mass percent be the diacetone of 2.2%, continuous stirring, the speed of stirring is 35 revs/min, and mixing time is 6 minutes, whipping temp is 16 DEG C, namely obtains formaldehyde quick detection reagent after mixing.
Embodiment 3:
A kind of formaldehyde quick detection reagent of the present invention, comprises the composition of following percentage by weight:
The preparation method of above-mentioned quick detection reagent, comprises the steps:
(1) by mass percent be 3.5% potassium metaperiodate and mass percent be 4.2% Phen join successively and be equipped with in the reactor of distilled water, and stir, the speed stirred is 50 revs/min, mixing time is 7 minutes, whipping temp is 12 DEG C, then obtains acid solution;
(2) by mass percent be 5.2% sodium pyrosulfate join in above-mentioned acid solution, after treating to dissolve completely, add mass percent be 2.5% sherwood oil, mass percent be the citric acid of 3.5%, stir, the speed stirred is 60 revs/min, mixing time is 8 minutes, and whipping temp is 7 DEG C, makes solution be translucent;
(3) finally add successively mass percent be 2.6% phenol reagent and mass percent be the diacetone of 3.2%, continuous stirring, the speed of stirring is 38 revs/min, and mixing time is 7 minutes, whipping temp is 18 DEG C, namely obtains formaldehyde quick detection reagent after mixing.
In above-described embodiment, the concentration of described sherwood oil is greater than 92% (percentage by weight), and the concentration of described citric acid is greater than 93% (percentage by weight).
When mentioned reagent is tested, first gas to be measured is collected, gas to be measured is passed in the beaker that formaldehyde quick detection reagent is housed, beaker is heated 20-40 DEG C, leave standstill 20-60 minute, observation color changes, if color changes, prove that in gas to be measured, concentration of formaldehyde is higher than national normal value 0.08mg/m3, it is larger that color illustrates that content of formaldehyde exceeds standard more deeply.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. a preparation method for formaldehyde quick detection reagent, is characterized in that, comprises the steps:
(1) by mass percent be 1.5 ~ 3.5% potassium metaperiodate and mass percent be 3.6 ~ 4.2% Phen join successively and be equipped with in the reactor of distilled water, and stir, the speed stirred is 40 ~ 50 revs/min, mixing time is 5 ~ 7 minutes, whipping temp is 10 ~ 12 DEG C, then obtains acid solution;
(2) by mass percent be 2.2 ~ 5.2% sodium pyrosulfate join in above-mentioned acid solution, after treating to dissolve completely, add mass percent be 1.5 ~ 2.5% sherwood oil, mass percent be the citric acid of 2.5 ~ 3.5%, stir, the speed stirred is 50 ~ 60 revs/min, mixing time is 6 ~ 8 minutes, and whipping temp is 5 ~ 7 DEG C, makes solution be translucent;
(3) finally add successively mass percent be 0.6 ~ 2.6% phenol reagent and mass percent be the diacetone of 1.2 ~ 3.2%, continuous stirring, the speed stirred is 30 ~ 38 revs/min, mixing time is 5 ~ 7 minutes, whipping temp is 15 ~ 18 DEG C, namely obtains formaldehyde quick detection reagent after mixing.
2. the preparation method of formaldehyde quick detection reagent as claimed in claim 1, it is characterized in that, the concentration of described sherwood oil is greater than 92% (percentage by weight), and the concentration of described citric acid is greater than 93% (percentage by weight); The concentration of described phenol reagent is greater than 94% (percentage by weight); The concentration of described diacetone is greater than 95% (percentage by weight).
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770925A (en) * | 2016-12-14 | 2017-05-31 | 蔡璇 | A kind of food formaldehyde quick detection reagent |
| CN107422085A (en) * | 2017-07-04 | 2017-12-01 | 河南艾能生物科技有限公司 | A kind of detection reagent of formaldehyde in food |
| CN108254512A (en) * | 2018-01-15 | 2018-07-06 | 山东五洲检测有限公司 | A kind of quick detection reagent of formaldehyde in food and preparation method thereof |
| CN108287159A (en) * | 2018-02-08 | 2018-07-17 | 朱佳琪 | A kind of chemical reagent and preparation method thereof for formaldehyde in food detection |
| CN110187034A (en) * | 2019-06-26 | 2019-08-30 | 东莞大宝化工制品有限公司 | A method of the free formaldehyde in oil paint and its raw material is measured using high performance liquid chromatography |
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2015
- 2015-12-16 CN CN201510952045.3A patent/CN105372240A/en active Pending
Patent Citations (4)
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| CN201754147U (en) * | 2010-08-09 | 2011-03-02 | 王晓晨 | Indoor formaldehyde content detector |
| CN103399010A (en) * | 2013-08-28 | 2013-11-20 | 烟台迪康环境科技有限公司 | Manufacturing method of color-changeable formaldehyde detection board |
| CN103529027A (en) * | 2013-10-23 | 2014-01-22 | 西安科技大学 | Formaldehyde color developing material |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106770925A (en) * | 2016-12-14 | 2017-05-31 | 蔡璇 | A kind of food formaldehyde quick detection reagent |
| CN107422085A (en) * | 2017-07-04 | 2017-12-01 | 河南艾能生物科技有限公司 | A kind of detection reagent of formaldehyde in food |
| CN108254512A (en) * | 2018-01-15 | 2018-07-06 | 山东五洲检测有限公司 | A kind of quick detection reagent of formaldehyde in food and preparation method thereof |
| CN108287159A (en) * | 2018-02-08 | 2018-07-17 | 朱佳琪 | A kind of chemical reagent and preparation method thereof for formaldehyde in food detection |
| CN110187034A (en) * | 2019-06-26 | 2019-08-30 | 东莞大宝化工制品有限公司 | A method of the free formaldehyde in oil paint and its raw material is measured using high performance liquid chromatography |
| CN110187034B (en) * | 2019-06-26 | 2021-08-31 | 东莞大宝化工制品有限公司 | Method for measuring free formaldehyde in oil paint and raw materials thereof by using high performance liquid chromatography |
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Application publication date: 20160302 |